Furnace blowing cold air

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Furnace blowing cold air

Post by jwalsh0825 » Mon Mar 12, 2012 7:11 pm

I have a PG9MAA048080 Payne Furnace with a 31 code. The water heater is next to it and a pipe burst from the water heater and sprayed water all over the furnace. Although we cleaned the water up, now the furnace is only blowing cold air out. We tried turning it completely off and restarting it. It still gives us the 31 code. Please advise.

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- Furnace blowing cold air

Post by heatseeker » Tue Mar 13, 2012 8:21 am

Figuring as though you tried resetting it and that didn't work I would call a company cause chances are something is fried.

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- Furnace blowing cold air

Post by how » Sat Mar 17, 2012 6:05 pm

You will have a legend inside your furnace (probably inside on the door) that lists what code 31 is for Payne.
Tell us what that is. If it's a pressure switch code, then it could be ID motor, capaciter, PS switch or board, all of which do badly when sprayed with water. A pro will have the manometer and HVAC meter to determine what is damaged.

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